<template>
  <el-row>
    <el-col :span="8" style="padding-right:10px">
      <div class="grid-content bg-purple">
        <el-card class="box-card">
          <div class="user">
            <img src="../assets/logo.png" alt="">
            <div class="userinfo">
              <p class="name">Admin</p>
              <p class="access">超级管理员</p>
            </div>

          </div>
          <div class="login-info">
            <p>上次登录时间：<span>2023-3-2</span></p>
            <p>上次登陆地点：<span>上海</span></p>
          </div>
        </el-card>
        <el-card style="margin-top:20px;height:460px;">
          <el-table :data="tableData" style="width: 100%">
            <!-- <el-table-column prop="name" label="课程">
            </el-table-column>
            <el-table-column prop="todayBuy" label="今日购买">
            </el-table-column>
            <el-table-column prop="monthBuy" label="本月购买">
            </el-table-column>
            <el-table-column prop="totalBuy" label="总购买">
            </el-table-column> -->
            <el-table-column v-for="(val,key) in tableLabel" :key="key" :prop="key" :label="val" />
          </el-table>
        </el-card>
      </div>
    </el-col>
    <el-col :span="16" style="padding-left:10px">
      <div class="num">
        <el-card v-for="item in countData" :key="item.name" :body-style="{display:'flex',padding:0,}">
          <i class="icon" :class="`el-icon-${item.icon}`" :style="{background:item.color}"></i>
          <div class="detail">
            <p class="price">￥{{ item.value}}</p>
            <p class="desc">{{ item.name }}</p>
          </div>
        </el-card>
      </div>
      <el-card style="height:280px">
        <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
        <!-- 折线图 -->
        <div ref="echarts1" style="height:280px"></div>
      </el-card>
      <div class="graph">
        <el-card style="height:260px">
          <div ref="echarts2" style="height:260px"></div>
        </el-card>
        <el-card style="height:260px">
          <div ref="echarts3" style="height:240px"></div>
        </el-card>
      </div>
    </el-col>
  </el-row>
</template>

<script>
import { getData } from '../api'
import * as echarts from 'echarts'
export default {
  data () {
    return {
      tableData: [],
      tableLabel: {
        name: '课程',
        todayBuy: '今日课程',
        monthBuy: '本月购买',
        totalBuy: '总共购买'
      },
      countData: [
        {
          name: "今日支付订单",
          value: 1234,
          icon: 'success',
          color: '#2ec7c9',
        },
        {
          name: "今日收藏订单",
          value: 1234,
          icon: 'success',
          color: 'pink',
        },
        {
          name: "今日取消订单",
          value: 1234,
          icon: 'success',
          color: '#2ec7c9',
        },
        {
          name: "今日完成订单",
          value: 1234,
          icon: 'success',
          color: '#2ec7c9',
        }
      ]
    }
  },
  mounted () {
    getData().then(({ data }) => {
      const { tableData } = data.data
      //console.log('tableData', data.data)
      this.tableData = tableData
      // 1.折线图
      // 基于准备好的dom，初始化Echarts实例
      const echarts1 = echarts.init(this.$refs.echarts1)

      // 指定图表的配置项和数据
      var echarts1option = {}
      // 处理数据xAxis,解构出折线图数据orderData
      const { orderData, userData, videoData } = data.data
      // ES6方法Object.keys()，返回对象的键为一个Arr
      //console.log('---------------',orderData.data[0])
      const xAxis = Object.keys(orderData.data[0])
      //console.log('====================',xAxis)

      // 公共部分提取出来
      const xAxisData = { data: xAxis }
      echarts1option.xAxis = xAxisData
      echarts1option.legend = xAxisData
      echarts1option.yAxis = {}
      echarts1option.series = []

      //  在键值对中,key是键/关键字,value是值
      xAxis.forEach(key => {
        echarts1option.series.push({
          name: key,
          data: orderData.data.map(item => item[key]),
          type: 'line'
        })
      })

     // console.log(echarts1option)
      // 根据刚制定完的配置项和数据显示图表
      echarts1.setOption(echarts1option)

      // 2.柱状图
      const echarts2 = echarts.init(this.$refs.echarts2)
      const echarts2option = {
        legend: {
          textStyle: {
            color: "#333"
          },
        },
        grid: {
          left: "20%",
        },
        Tooltip: {
          trigger: "axis",
        },
        xAxis: {
          type: "category",
          data: userData.map(item => item.data),
          axisLine: {
            lineStyle: {
              color: "#17b3a3",
            }
          },
          axisLabel: {
            interval: 0,
            color: "#333",
          }
        },
        yAxis: [
          {
            type: "value",
            axisLine: {
              lineStyle: {
                color: "#17b3a3",
              },
            },
          },
        ],
        color: ["blue", "#b6a2de"],
        series: [
          {
            name: '新增用户',
            type: 'bar',
            data: userData.map(item => item.new),
          },
          {
            name: '活跃用户',
            type: 'bar',
            data: userData.map(item => item.active),
          }
        ],
      }
      echarts2.setOption(echarts2option)

      // 3.饼状图
      const echarts3 = echarts.init(this.$refs.echarts3)
      const echarts3option = {
        tooltip: {
          trigger: "item",
        },
        color: [
          "green",
          "pink",
          "#dd536b",
          "blue",
          "#000",
          "red",
        ],
        series: [{
          data: videoData,
          type: 'pie',
        }],
      }
      echarts3.setOption(echarts3option)
    })
  }
}

</script>

<style lang="less" scoped>
.user {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid #ccc;
  display: flex;
  align-items: center;
  img {
    margin-right: 40px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
  }
  .userinfo {
    .name {
      font-size: 32px;
      margin-bottom: 10px;
    }
    .access {
      color: #999999;
    }
  }
}
.login-info {
  p {
    line-height: 28px;
    font-size: 14px;
    color: #999999;
    span {
      color: #666666;
      margin-left: 60px;
    }
  }
}
.num {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  .icon {
    width: 80px;
    height: 80px;
    font-size: 30px;
    color: #fff;
    text-align: center;
    line-height: 80px;
  }
  .detail {
    margin-left: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    .price {
      font-size: 30px;
      margin-bottom: 10px;
      line-height: 30px;
      height: 30px;
    }
    .desc {
      font-size: 14px;
      color: #999;
      text-align: center;
    }
  }
  .el-card {
    width: 32%;
    margin-bottom: 20px;
  }
}
.graph {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  .el-card {
    width: 48%;
  }
}
</style>